Cartridge extractor



Patentecl Nov. 29 1949 UNITED STATES PATENT OFFICE CARTRIDGE EXTRACTOR John L. Gnrichan, Verden, Ill.

Application September 11, 1946, Serial No. 696,331

(Cl. fil-3.05)

(Granted under the act of March 3, 1883, as amended April 30, 1928; 370 0. G. 757) 6 Claims.

ftured cartridge case from the barrel of a rearm and, as can easily be appreciated, in military use there frequently are crucial moments when `it is most necessary that such cases be speedily removed. Obviously the rearm cannot be fired again until the ruptured case is removed, wherefore the operator is often in a dangerous position if the case is not quickly extracted.

While various devices for such purposes have been heretofore conceived, such previous devices have been generally unsatisfactory and expensive to manufacture. The device of this invention is simple and economical to manufacture and easy `to operate as will be seen.

The specific nature of the invention as well as other objects and advantages thereof will clearly appear from a description of a preferred em bodiment as shown in the accompanying drawings in which:

l Fig. 1 is a partial and sectional view showing the device of the invention in pre-extracting position;

Fig. 2 is a similar View showing the device of the invention in extracting position; and

Fig. 3 is a sectional view on the line 3-3 of Fig. 2.

For purposes of description, there is shown in Fig. l, the breech portion of a .50 cal. machine gun, for example. The barrel is indicated by B, and the usual barrel extension by C.

The extractor device embodying the features of the invention consists principally of what may be referred to as a `plunger or body member 2 shaped generally to conform to the chamber of Ythe firearm barrel B. There is also a neck portion 6 extending forwardly of the body member which is of less diameter than the latter.

4 A stop member 8 is provided on the outer or forward end of neck 6 and this is preferably in the form of an annular member having a more or less semispherical head portion provided with a somewhat rounded front surface Il) and a relatively flat rear surface I2. The stop member is held securely on neck portion 6, as by riveting or welding. The rounded surface` l is adapted to facilitate insertion of the `plunger into the ruptui-ed case, while the surface l2 provides a flange,

`all for purposes which will presently appear.

A` ring-like collar `member 2|] is loosely mounted on the neck part 6 and the arrangement is such that it may tilt or pivot on an angle relative to the head 8 and is non-rotatable relative to the neck E. This may be accomplished in various ways but, according to the preferred embodiment, the reduced part 6 has its opposite sides 6a flattened somewhat as shown in Fig. 3 and an opening 20a. of the collar 2|) through 'which the part 6 extends is more or less enlarged and elongated providing opposed flattened sides 20h corresponding to sides 6a of neck portion E.

Opposite exterior sides 20c parallel to the flattened inner sides 20h of the collar 20 are correspondingly flattened or straight. The flattening of exterior sides 20c permits the insertion of co1- lar 20, in a tilted position, through the ruptured cartridge case D. The collar member 20 normally `lies at an angle to said at surface I2 of the head member 8, being assisted into such position by a pin-like part 23 which extends forwardly from the body 2 and is preferably spaced above and disposed substantially in` parallelism with the neck 6.

The forward extremity of said part 23 is adapted to engage the rear surface 24 of the collar so as to assist the tilting movement of the collar when the device is moved forwardly through the case D. The collar also preferably is formed to have a cut-away portion 25 (Fig. 3) on its lower side so as to accommodate the tilting movements of the collar.

The body member 2 has on its rear end a yoke portion 30 consisting of spaced arms 32 and between these arms is pivoted the forward end of what may be referred to as a handle member 34. The handle 34 may obviously be of any size or shape but, in any event, it is arranged for pivotal movement relative to the extractor body member, as on a pin 36 extending through arms 32,

The handle 34is adapted to be swung upwardly relative to the firearm and the upper surface of its forward end portion is rounded or otherwise formed so as to presenta cam surface 38. That is, the arrangement is such that the surface 38 engages the rear face of the barrel B and/or a part of the barrel extension C when the handle is swung upwardly so as to bring about the extracting of the case in a manner which will be described.

The said collar member, as stated, is non-rotatable relative to the neck part. However, it is tiltable or rockable relative thereto in such a way that the overall diameter of collar and neck is reducible and adjustable to such an extent that the extractor body 2 may be easily inserted within the bore of the ruptured cartridge.

At the same time, the inner face of the collar 2i? is more or less flattened so that when the forward marginal edge of the cartridge engages said inner face, said collar is automatically tilted into abutting engagement with the rear face of the head member 8. The subsequent pivotal and upward movement of the handle will automatically withdraw the ruptured cartridge case from the firearm.

In other words, in operating the device of the invention, the plunger is inserted into the bore of the ruptured cartridge so that the head 8 and rocking member 2li are disposed within the neck of the case as shown in Fig. 2 and the upward swinging of the handle and consequent camming therewith engageable with said flattened surfaces "of said neck part whereby the same is held against v rotative movements relative thereto but is permitted to pivot relative thereto between a smalldiameter position at an angle to the plane of said head portion and a large-diameter position substantially in abutment with the rear face of said head portion, a pin-like member protruding from said body portion in parallelism with and engagement thereof with the extension or barrel,

or both, results in removal of the case rearwardly and hence extraction thereof from the barrel. That is to say, the handle engages the barrel or other portion of the firearm as a fulcrum so that the plunger and its engaged ruptured case may be withdrawn.

I claim: l. A device of the class described for extract- :ing a ruptured cartridge case from a firearm barrel comprising in combination, a plunger member arranged to be insertable forwardly into the barrel and thru the ruptured case and including a body portion and a head portion, said `head portion `being adapted to project forwardly of the mouth of the ruptured case, a reduced neck `part extending between said body and head portions, a collar member having opposed flattened exterior sides and of slightly greater diameter than the neck of a cartridge non-rotatably dls- -posed on said neck part and pivotable thereon between a small diameter position at an angle to said head portion and a large diameter position substantially in abutment therewith, a pinlike member associated with said body portion adapted to assist in pivoting said collar member when the plunger member is inserted through the case and means attached to the plunger member for withdrawing the same `from the barrel of the firearm.

2, A device of the class described for extracting a ruptured cartridge case from a firearm barrel comprising in combination, a plunger body member arranged to be insertable forwardly into said barrel and thru the ruptured case, a reduced neck part forwardly of said body member,

,a head portion forwardly of said neck part, a

non-rotatable collar member having oppositely ldisposed flattened exterior sides and of slightly greater diameter than the neck of the cartridge tiltable on said neck part and pivotable thereon `between a small diameter position at an angle to the plane of said head portion and a large diameter position substantially in abutment with the rear face of said head portion, means for tilting -said collar member from a position in abutment prising in combination, a plunger member ar'- spaced above said neck portion to assist the pivoting of said collar member when the plunger member is inserted through the case, and means attached to the plunger member for withdrawing the same from the barrel of the firearm.

4. A device of the class described for extracting a ruptured cartridge case from a firearm barrel comprising in combination, a plunger body member arranged to be insertable forwardly into the barrel and .through the ruptured case and including a head portion adapted to project forwardly of the mouth of the case, the outside 'diameter of said head portion being less than that of the mouth of the case, a neck portion of less outside diameter than those of both the plunger body member and head portion and extending therebetween, a collar member having oppositely disposed flattened exterior sides and non-rotatably disposed on said neck portion but pivoted thereon between an angular posi- `tion wherein the overall outside diameter of said neck portion and collar member is approximately the same as that of said head portion and a position substantially in abutment with the rear face of said head porti-on wherein the overall outside diameter of said neck portion and collar member is greater than the mouth of the case, a pin-like member protruding from said body portion in parallelism with and spaced above said neck portion to assist in the pivoting 'of said'collar member when the plunger member is inserted through the case, and means attached to the plunger body member for withdrawing the same from the barrel of the firearm.

5. A device ofthe class described for extract- `ing a ruptured cartridge case from a firearm barrel comprising in combination, a plunger member arranged to beinsertable forwardly into the barrel and through the ruptured case and including a body portion and a head portion, said head portion being adapted to project forwardly of the mouth ,of the ruptured case, a reduced neck part extending between said body and head portions, said neck part having ilattened side surfaces,A a collar member having exterior flattened sides and fiattened interior surfaces parallel therewith engageable with opposite flattened side surfaces of said neck part whereby the said collar member isheld against rotative movements relative thereto but is permitted to pivot relative thereto between a small-diameter position at an angle to the plane of said head portion and a large-diameter position substantially in abutment with the rear face of said head portion, a pinlike member extending forwardly from the plunger member in parallelism with the longitudinal axis of said neck part and arranged to assist the pivoting of said collar member when the plunger member is moved forwardly through the case, and means attached to the plunger member for withdrawing the same from the barrel of the firearm.

6. A device of the class described for extracting a ruptured cartridge case from a rearm barrel comprising in combination, a plunger body member arranged to be insertable forwardly into said barrel and through the ruptured case and including a head portion adapted to project forwardly of the mouth of the case, the outside diameter of said head portion being less than that of the mouth of the case, a neck part of less outside diameter than those of both the plunger body member and head portion and extending therebetween, a collar member having oppositely disposed flattened exterior sides and non-rotatably disposed on said neck part but pivoted thereon between an angular position wherein the overall outside diameter of said collar member is approximately the same as that of said head portion and a vertical position substantially in abutment with the rear face of said head portion REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,326,569 Burdett Dec. 30, 1919 1,725,814 McCormick Aug, 27, 1929 FOREIGN PATENTS Number Country Date 8,896 Switzerland Aug. 25, 1894 

